Finding the Fourth Proportional to 1,246,076,873.46, 1,720,115,558.82 and 776,410,246.44
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Solution
The fourth proportional to 1,246,076,873.46, 1,720,115,558.82 and 776,410,246.44 is: 1,071,776,046.38
Step by Step Solution
- Step 1: Write the proportion equation
1,246,076,873.46 : 1,720,115,558.82 = 776,410,246.44 : x - Step 2: Convert to fraction form
1,246,076,873.46/1,720,115,558.82 = 776,410,246.44/x - Step 3: Cross multiply
1,246,076,873.46x = 1,720,115,558.82 × 776,410,246.44 - Step 4: Simplify right side
1,246,076,873.46x = 1,335,515,344,928,714,496 - Step 5: Solve for x
x = 1,335,515,344,928,714,496/1,246,076,873.46 - Step 6: Final answer
x = 1,071,776,046.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.